US 4,013,234 AGranted

Dough mixer

AssigneeJ. W. Fay & Son, Inc.

InventorRudolph J. Fay

Life of this patent

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Abstract

A dough mixer having a chopper section and a mixer section. The chopper section is at the inlet end of the mixer and includes a series of blades spaced longitudinally on a mixer shaft. The chopper blades are disposed in a plurality of planes normal to the shaft's axis, and extend outwardly from that shaft through a grilled floor in an inlet hopper, thereby insuring a complete and thorough break up of recycled dough. The mixer section is downstream of the chopper section and also includes a series of blades fixed to the mixer shaft. The mixer blades are also disposed in a plurality of planes normal to the shaft's axis but the mixer blades within each plane are angulated or pitched relative to that plane. Further, the mixer blades increase in pitch between succeeding planes from the inlet end to the outlet end of the mixer section, thereby insuring a homogeneous dough. The dough is exhausted from the dough mixer by gravity through an outlet port.

Claims13

Dependent claims

A mixer for admixing a food dough comprising

a mixer housing
a plurality of blades fixed to a single mixer shaft disposed within said mixer housing, said blades all being of the same geometry,
an inlet hopper having a grillwork floor disposed adjacent the exterior periphery of said single mixer shaft, a portion of said blades projecting up and through said grillwork floor during rotation of said mixer shaft, said blades and grillwork floor cooperating to cut thoroughly any recycled dough scrap upon introduction of same into said mixer, the blades that cooperate with said grillwork floor being in the chopper section of said mixer and the blades that do not cooperate with said grillwork floor being in the mixer section of said mixer,
mounting means connecting said blades to said single mixer shaft, said mounting means being operable to adjust the pitch of said blades relative to a plane transverse to the axis of said mixer shaft, said blades within said chopper section lying substantially transverse to the axis of said mixer shaft, said blades within said mixer section being pitched relative to the axis of said mixer shaft, and the pitch of said blades increasing along the length of said mixer shaft within said mixer section from the inlet of said mixer section to the outlet of said mixer section, and
drive means connected with said mixer shaft for rotating said mixer shaft within said housing.

2 more elements

A mixer for admixing a food dough comprising

a mixer housing
a plurality of blades fixed to a mixer shaft disposed within said mixer housing,
an inlet hopper having a grillwork floor disposed adjacent the exterior periphery of said mixer shaft, a portion of said blades projecting up and through said grillwork floor during rotation of said mixer shaft, said blades and grillwork floor cooperating to cut thoroughly any recycled dough scrap upon introduction of same into said mixer, the blades that cooperate with said grillwork floor being in the chopper section of said mixer and the blades that do not cooperate with said grillwork floor being in the mixer section of said mixer, said inlet hopper comprising
a tubular hopper member having a first seating flange thereon, and
a hopper insert having a second seating flange thereon, said hopper insert mounting said grillwork, and said seating flanges cooperating to position said hopper insert within said hopper and, thereby, position said grillwork relative to said mixer shaft,
mounting means connecting said blades to said mixer shaft, said mounting means being operable to adjust the pitch of said blades relative to a plane transverse to the axis of said mixer shaft, and
drive means connected with said mixer shaft for rotating said mixer shaft within said housing.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 05/628,896Filed 5 Nov 1975
Granted: 22 Mar 1977
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

B01F 27/071
Characterised by their mounting on the shaft: fixing of the stirrer to the shaft
A21C 1/06
Mixing or kneading machines for the preparation of dough: with horizontally-mounted mixing or kneading tools; Worm or screw mixers
A21C 1/142
Structural elements of mixing or kneading machines; Parts; Accessories: feeding mechanisms, e.g. skip lifting mechanisms
B01F 27/724
With helices or sections of helices: with a single helix closely surrounded by a casing